LA4282 Audio Power Amplifier Class AB, 10W 2-Channel Overview www.onsemi.com The LA4282 is the IC for 2-channel SE power amplifier that is developed for TVs and monitors audio system. High power and low distortion are realized. This IC incorporate various functions (muting function, and various protection circuit) necessary for audio system. Features High-power 2-channel AF power amplifier Low distortion Minimum number of external parts required (no bootstrap capacitor SIP12 26.8 mm x 11.8 mm required) Low pop noise at the time of power supply ON/OFF Good ripple rejection (58dB typ) GENERIC MARKING DIAGRAM* Wide operating voltage range External muting available On-chip protector against abnormality (thermal shutdown, overvoltage) XXXXXXXXXX YMDDD Typical Applications Home Stereo TV XXXXX = Specific Device Code Y = Year M = Month SPECIFICATION DDD = Additional Traceability Data ABSOLUTE MAXIMUM RATINGS at Ta = 25C (Note 1) Parameter Symbol Conditions Ratings Unit Maximum supply voltage V max Quiescent 45V CC Maximum output current 4A I peak O ORDERING INFORMATION Allowable power dissipation With heat sink 25 W Pd max Ordering Code: Operating temperature 20 to 75 C Topr LA4282-E Storage temperature 40 to 150 C Tstg 1. Stresses exceeding those listed in the Absolute Maximum Rating table may damage the device. If Package any of these limits are exceeded, device functionality should not be assumed, damage may occur SIP12 and reliability may be affected. (Pb-Free / Halogen Free) Shipping (Qty / packing) 20 / Fan-Fold RECOMMENDED OPERATING RANGE at Ta = 25C (Note 2) Parameter Symbol Conditions Ratings Unit For information on tape and reel specifications, Recommended supply voltage 32V V CC including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications 10 to 40 V V CC op Brochure, BRD8011/D. LA4282 ELECTRICAL CHARACTERISTICS at Ta 25 C, V = 32V, R = 8 , f = 1kHz, Rg = 600 , See Test Circuit. (Note3) C L Ratings Parameter Symbol Conditions Unit min typ max Quiescent current Quiescent 3060 100 mA I (1) CCO Muting switch On 30 56 100 mA I CCO (2) Voltage gain 3840 42 dB VG Voltage gain difference 1.5 dB VG Output power THD = 1% 9.0 10.0 W P (1) O THD = 3% 10.0 11.5 W P (2) O Total harmonic distortion P = 2W 0.05 0.20 % THD O Output noise voltage Rg = 10k , BW = 20Hz to 20kHz 0.25 1.0 mV V NO Ripple rejection Rg = 10k , f = 100Hz, V = 0dBm 45 58 dB SVRR R R Crosstalk Rg = 10k 4560 dB CT Muting Muting switch On, V = 5dBm 35 dBm V IN O (MT) 3. Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product performance may not be indicated by the Electrical Characteristics if operated under different conditions. PACKAGE DIMENSIONS unit : mm SIP12 26.8x11.8 / SIP12H CASE 127AM ISSUE A www.onsemi.com 2